CN217817039U - Fresh air pipeline structure and air conditioner - Google Patents

Abstract

The application relates to the technical field of air conditioners, and discloses a fresh air pipeline structure, include: a pipe body and a damping portion. One end of the pipeline body is an air inlet, the other end of the pipeline body is an air outlet, the air inlet is communicated with the outside, and the air outlet is communicated with the inside; the damping portion sets up in the pipeline body, has the damping passageway that sets up in the damping portion along the pipeline body circulation direction, and the damping passageway runs through the damping portion setting, and the area of overflowing of the one end of damping passageway towards the air intake is less than the area of overflowing of the one end of damping passageway towards the air outlet. In this application, can reduce the air outlet frosting risk of fresh air pipeline structure, simplify the structure of fresh air pipeline, reduce its cost. The application also discloses an air conditioner.

Description

Fresh air pipeline structure and air conditioner

Technical Field

The application relates to the technical field of air conditioners, in particular to a fresh air pipeline structure and an air conditioner.

Background

At present, under the working conditions of extreme cold outdoors and large wind power of fresh air conditioners in the market, outdoor cold air can flow backwards through a fresh air pipeline to enter the room, so that an air outlet of the fresh air pipeline is frosted, and the normal use of the fresh air conditioners is influenced.

There is a new trend device among the correlation technique, including the connecting pipe, the medial extremity of connecting pipe is equipped with the sleeve pipe, sheathed tube internal surface is equipped with the adjustment mechanism who is used for adjusting the wind channel sectional area, adjustment mechanism includes the back shaft, the lateral wall of back shaft is equipped with the baffle, the front surface of baffle is equipped with first installation axle, the middle part of first installation axle articulates there is electric push rod, electric push rod's right-hand member is equipped with second installation axle, the front surface assembly of second installation axle is at sheathed tube internal surface, can adjust the area of overflowing in wind channel through adjustment mechanism according to the new trend demand, thereby prevent that outdoor air current from flowing backward and getting into indoorly, reduce the risk of frosting of wind channel air outlet.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the structure of the fresh air pipeline is complex, the fresh air pipeline is not easy to install and maintain, and the cost of the fresh air pipeline is increased.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended to be a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a fresh air pipeline structure and an air conditioner, so that the frosting risk of an air outlet of the fresh air pipeline structure is reduced, the structure of a fresh air pipeline is simplified, and the cost of the fresh air pipeline structure is reduced.

In some embodiments, a fresh air duct structure, comprising: a pipe body and a damping portion. One end of the pipeline body is provided with an air inlet, the other end of the pipeline body is provided with an air outlet, the air inlet is communicated with the outside, and the air outlet is communicated with the inside; the damping portion sets up in the pipeline body, has the damping passageway that sets up in the damping portion along the pipeline body circulation direction, and the damping passageway runs through the damping portion setting, and the area of overflowing of the one end of damping passageway towards the air intake is less than the area of overflowing of the one end of damping passageway towards the air outlet.

Optionally, the damping portion blocks the flow surface of the pipe body.

Optionally, one end of the damping channel facing the air inlet is a first end, and one end of the damping channel facing the air outlet is a second end; the flow area of the first end is greater than or equal to one half of the flow area of the second end and is smaller than the flow area of the second end.

Optionally, the flow area of the first end is equal to one half of the flow area of the second end.

Optionally, the damping channel is provided in plurality, and the plurality of damping channels are uniformly distributed in the damping portion.

Optionally, the sum of the flow areas of the ends of the plurality of damping channels facing the air inlet is greater than or equal to one fourth of the flow area of the pipeline body and less than one half of the flow area of the pipeline body; the sum of the flow areas of the ends, facing the air outlet, of the damping channels is greater than or equal to one half of the flow area of the pipeline body and smaller than the flow area of the pipeline body.

Optionally, the distance from the damping part to the air inlet is half of the distance from the damping part to the air outlet.

Optionally, the fresh air duct structure further includes: a fan. The fan is arranged in the pipeline body and used for providing negative pressure required by introducing fresh air.

Optionally, the fan is arranged on the air outlet side of the damping part.

In some embodiments, an air conditioner includes: fresh air inlet and the fresh air pipeline structure of above-mentioned embodiment. The fresh air inlet is positioned indoors; the fresh air pipeline structure of the embodiment is communicated with the fresh air inlet.

The fresh air pipeline structure and the air conditioner provided by the embodiment of the disclosure can realize the following technical effects:

outdoor new trend can flow into in the pipeline through the air intake of the pipeline body, then flow into indoor through the air outlet, set up damping portion in the pipeline body, damping channel that runs through has in damping portion, when need not to introduce new trend, even when outdoor wind-force is great, under the internal circumstances of outdoor air current backward flow entering pipeline, because damping channel is less than damping channel towards the area of the one end of air outlet's one end, can produce the damping effect to the air current of backward flow, reduce the air flow that backward flow got into indoor, delay the velocity of flow of backward flow air current, thereby reduce the risk of air outlet department frosting, and come to produce the damping effect to the air current of backward flow through the damping portion that sets up simple structure, when reducing the air outlet of new tuber pipe structure risk of frosting, simplify the structure of new trend pipeline, reduce its cost.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated in the accompanying drawings, which correspond to the accompanying drawings and not in a limiting sense, in which elements having the same reference numeral designations represent like elements, and in which:

fig. 1 is a schematic cross-sectional view of a fresh air duct structure provided by an embodiment of the present disclosure;

FIG. 2 is a schematic view of a first end of a damper according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of a second end of a damping portion according to an embodiment of the present disclosure;

FIG. 4 is a schematic cross-sectional view of another fresh air duct configuration provided by an embodiment of the present disclosure;

FIG. 5 is a schematic view of a first end of another damping portion provided in an embodiment of the present disclosure;

FIG. 6 is a schematic view of a second end of another damping portion provided in accordance with an embodiment of the present disclosure;

FIG. 7 is a schematic cross-sectional view of another fresh air duct configuration provided by an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of an air conditioner according to an embodiment of the present disclosure.

Reference numerals:

100. a pipe body; 101. an outdoor section; 102. an indoor section; 110. an air inlet; 120. an air outlet;

200. a damping part; 210. a damping channel; 211. a first end; 212. a second end;

300. a fan;

400. and a fresh air inlet.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged as appropriate for the embodiments of the disclosure described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more, unless otherwise specified.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

With reference to fig. 1 to 8, an embodiment of the present disclosure provides a fresh air duct structure, including: a duct body 100 and a damping part 200. One end of the pipeline body 100 is provided with an air inlet 110, the other end is provided with an air outlet 120, the air inlet 110 is communicated with the outside, and the air outlet 120 is communicated with the inside; the damping portion 200 is disposed in the duct body 100, the damping portion 200 has a damping channel 210 disposed along a flow direction of the duct body 100, the damping channel 210 is disposed through the damping portion 200, and an area of the damping channel 210 flowing toward an end of the air inlet 110 is smaller than an area of the damping channel 210 flowing toward an end of the air outlet 120.

According to the fresh air pipeline structure provided by the embodiment of the disclosure, outdoor fresh air can flow into the pipeline body 100 through the air inlet 110 of the pipeline body 100 and then flows into the indoor through the air outlet 120, the damping part 200 is arranged in the pipeline body 100, the damping channel 210 penetrating through the damping part 200 is arranged, when fresh air does not need to be introduced, even if outdoor wind power is large and outdoor airflow flows backwards into the pipeline body 100, because the overflowing area of one end, facing the air inlet 110, of the damping channel 210 is smaller than that of one end, facing the air outlet 120, of the damping channel 210, a damping effect can be generated on the backwards flowing airflow, the airflow quantity flowing backwards into the indoor is reduced, the flow speed of the backwards flowing airflow is delayed, the risk of frost formation at the air outlet 120 is reduced, the damping effect is generated on the backwards flowing airflow through the damping part 200 with a simple structure, the structure of the fresh air pipeline is simplified while the risk of frost formation at the air outlet 120 of the fresh air pipeline structure is reduced, and the cost is reduced.

Alternatively, the duct body 100 is a cylindrical duct structure, and one end of the duct body in the axial direction is an air inlet 110, and the other end is an air outlet 120. Therefore, the cylindrical pipeline structure is beneficial to air flow circulation inside, when outdoor fresh air flow needs to be introduced, the outdoor air flow enters the pipeline body 100 through the air inlet 110, the flowing direction does not need to be changed in the pipeline body 100, and the pressure loss of the fresh air flow is reduced.

It can be understood that the duct body 100 of the cylindrical duct structure extends to the outside through the wall of the room, and the inlet 110 is located at the outside and the outlet 120 is located at the inside.

Optionally, the damper portion 200 blocks the flow surface of the duct body 100. Like this, through the excessive flow face of damping portion 200 shutoff pipeline body 100, under the condition that outdoor air current flows backward and gets into in the pipeline body 100, the air current that flows backward must pass through damping channel 210 in the damping portion 200 and just can flow into indoorly, because the area of overflowing of damping channel 210 towards the one end of air intake 110 is less than the area of overflowing of damping channel 210 towards the one end of air outlet 120, thereby better can produce the damping effect to the air current that flows backward, further reduce the air flow that flows backward and get into indoorly, when the temperature of outdoor air current is lower, further reduce the risk of frosting of air outlet 120 department.

Alternatively, the damping part 200 is a cylindrical structure shaped to fit the pipe body 100, and the damping passage 210 is a passage structure penetrating the damping part 200 in the axial direction of the damping part 200. In this way, the damper 200 is adapted to the shape of the flow surface of the duct body 100, the flow surface of the duct body 100 can be closed by the damper 200, and the airflow flows through the damper passage 210 penetrating in the axial direction of the damper 200, thereby generating a damping effect on the airflow and reducing the pressure loss of the airflow.

Specifically, the damping channel 210 is a trumpet-shaped structure, a narrow opening of the trumpet-shaped structure is located on the end surface of the damping portion 200 facing the air inlet 110, and a wide opening of the trumpet-shaped structure is located on the end surface of the damping portion 200 facing the air outlet 120. Like this, tubaeform damping channel 210 can produce better damping effect to the air current of flowing backward, and tubaeform damping channel 210's inner wall is more level and smooth moreover, and the air current is when circulating through damping channel 210, and pressure loss is less, and when new trend was introduced to needs, the loss of new trend amount of wind was less.

As shown in fig. 2 and 3, in one embodiment, an end of the damping channel 210 facing the inlet 110 is a first end 211, and an end of the damping channel 210 facing the outlet 120 is a second end 212; the flow area of the first end 211 is greater than or equal to one-half of the flow area of the second end 212 and is less than the flow area of the second end 212. Thus, under the condition that the flow area of the first end 211 is smaller than one half of the flow area of the second end 212, the intake air volume of the damping channel 210 is smaller, although the damping effect of the airflow is better at this time, a larger fresh air volume is lost under the condition that outdoor fresh air needs to be introduced, under the condition that the flow area of the first end 211 is equal to the flow area of the second end 212, the airflow damping effect of the damping channel 210 is lost at this time, and the reversed airflow flows into the room in a large quantity to cause the air outlet 120 to frost, so that the flow area of the first end 211 is larger than or equal to one half of the flow area of the second end 212 and smaller than the flow area of the second end 212, the damping effect of the damping channel 210 on the airflow is blocked, the loss of the fresh air volume is reduced, and the fresh air experience is improved.

It will be appreciated that in the case where the damping channel 210 is a flared channel, the first end 211 is a narrow mouth of the damping channel 210 and the second end 212 is a wide mouth of the damping channel 210.

Optionally, the flow area of the first end 211 is equal to one-half of the flow area of the second end 212. Like this, set up the area of overflowing of first end 211 to be equal to the area of overflowing of second end 212 one half, when need not to introduce outdoor new trend, even outdoor wind-force is great causes outdoor air current to flow backward and gets into pipeline body 100 in, also can produce better damping effect to the air current through damping channel 210, when needs introduce outdoor new trend, first end 211 can flow in right amount new trend air current, reduces the loss of new trend air current volume.

Optionally, the flow area of the second end 212 is greater than or equal to one-half of the flow area of the pipe body 100, and is smaller than the flow area of the pipe body 100. Therefore, when outdoor fresh air needs to be introduced, the introduction amount of the fresh air can be guaranteed.

Specifically, the flow area of the first end 211 is denoted as S1, the flow area of the second end 212 is denoted as S2, the flow rate of the air flow on the air inlet side of the first end 211 is denoted as V1, the flow rate of the air flow on the air outlet side of the second end 212 is denoted as V2, S2 is greater than S1, and S2 is twice S1, when fresh air does not need to be introduced and outdoor air flows flow flows backward into the duct body 100, when the outdoor air inlet flow rate is Q1, because S1 is smaller than the flow area of the duct body 100, the first end 211 generates a damping effect, so that the air flow entering the damping channel 210 is reduced, the air flow entering the damping channel 210 is multiplied by S1, because S2 is greater than S1, the flow rate of the air flow flowing out of the second end 212 is smaller than V1, the flow rate of the air flow flowing out of the second end 212 is slowed down, the air flow slowly enters the room, and when the air flow reaches the air outlet 120, the air flow temperature slightly rises, so that the risk of frosting at the air outlet 120 is reduced; when new trend needs to be introduced, the flow velocity V1 of the new trend air current is increased under the action of negative pressure, a large amount of new trend air current flows into the first end 211 and is blown out through the second end 212, the introduced amount of the new trend is V1 multiplied by S1, but the loss of the new trend air volume is small due to the increase of V1, and the new trend requirement can be met.

Referring to fig. 4, 5 and 6, in another embodiment, the damping channel 210 is provided in plurality, and the plurality of damping channels 210 are uniformly distributed in the damping portion 200. Like this, carry out the circulation of air current through the damping passageway 210 that sets up a plurality of evenly distributed, utilize a plurality of damping passageways 210 better to the damping effect of air current, and when outdoor new trend is introduced to needs, the air inlet of a plurality of damping passageways 210 is more even, and the induced air effect is better.

Optionally, the sum of the flow areas of the ends of the plurality of damping channels 210 facing the air inlet 110 is greater than or equal to one fourth of the flow area of the duct body 100 and less than one half of the flow area of the duct body 100; the sum of the flow areas of the ends of the damping channels 210 facing the air outlet 120 is greater than or equal to one half of the flow area of the duct body 100 and is smaller than the flow area of the duct body 100. In this way, in the case that the sum of the flow areas of the ends of the plurality of damping channels 210 facing the air inlet 110 is less than a quarter of the flow area of the duct body 100, and the sum of the flow areas of the ends of the plurality of damping channels 210 facing the air outlet 120 is less than a half of the flow area of the duct body 100, the airflow in the duct body 100 is difficult to flow into the plurality of damping channels 210, and when outdoor fresh air needs to be introduced, the introduction amount of the fresh air is seriously affected, in the case that the sum of the flow areas of the ends of the plurality of damping channels 210 facing the air inlet 110 is greater than or equal to a half of the flow area of the duct body 100, and the sum of the flow areas of the ends of the plurality of damping channels 210 facing the air outlet 120 is equal to the flow area of the duct body 100, the damping effect of the airflow can be affected, and the backward airflow can flow into the air outlet 120 in a large amount to cause frosting, so that the sum of the flow areas of the ends, facing the air inlet 110, of the multiple damping channels 210 is greater than or equal to one fourth of the flow area of the pipeline body 100 and less than one half of the flow area of the pipeline body 100, the sum of the flow areas of the ends, facing the air outlet 120, of the multiple damping channels 210 is greater than or equal to one half of the flow area of the pipeline body 100 and less than the flow area of the pipeline body 100, the backward airflow can be better damped through the multiple damping channels 210, frosting at the air outlet 120 in a large amount of the backward airflow flowing chamber can be avoided, and loss of the air volume can be reduced when fresh air needs to be introduced.

Specifically, in the plurality of damping channels 210, an end of each damping channel 210 facing the inlet 110 is a first end 211, an end of each damping channel 210 facing the outlet 120 is a second end 212, a sum of flow areas of the plurality of first ends 211 is equal to one fourth of a flow area of the duct body 100, and a sum of flow areas of the plurality of second ends 212 is equal to one half of the flow area of the duct body 100. Like this, when need not to introduce the new trend, a plurality of damping passageways 210 can carry out better damping to the air current of flowing backward, avoid a large amount of air currents of flowing backward to flow into indoor air outlet 120 department that causes and frosts, when needs introduce the new trend, utilize evenly distributed's a plurality of damping passageways 210 can introduce the new trend better, reduce the loss of new trend amount of wind.

Specifically, the sum of the flow areas of the first ends 211 of the plurality of damping channels 210 is the same as the flow area of the first end 211 of one damping channel 210, and the sum of the flow areas of the second ends 212 of the plurality of damping channels 210 is also the same as the flow area of the second end 212 of one damping channel 210. Therefore, when a plurality of damping channels 210 are provided, the first end 211 of each damping channel 210 in the plurality of damping channels 210 is relatively smaller than when one damping channel 210 is provided, thereby further improving the damping effect of the airflow.

As shown in fig. 7, in some embodiments, the distance between the damping portion 200 and the wind inlet 110 is one half of the distance between the damping portion 200 and the wind outlet 120. Like this, outdoor ambient temperature is lower, and need not to introduce under the circumstances of new trend, the velocity of flow can slow down after the cold air current that flows backward into in pipeline body 100 flows out from damping channel 210 under the damping effect of damping portion 200, consequently with damping portion 200 setting in the position that the distance apart from air intake 110 is half of the distance apart from air outlet 120, damping portion 200 is farther apart from air outlet 120 for being apart from air intake 110 promptly, thereby prolong the air current flow time in pipeline body 100 that the velocity of flow slows down, the temperature rises again when waiting for the air current to reach air outlet 120, thereby further reduce the risk of frosting of air outlet 120 department.

As shown in fig. 7, L1 is a distance between the damping portion 200 and the inlet 110, L2 is a distance between the damping portion 200 and the outlet 120, and L1 is equal to one half of L2.

Specifically, the duct body 100 is installed through an indoor wall, and the damper 200 is installed inside the duct body 100 at a position corresponding to the wall, and the duct body 100 is divided into the outdoor section 101 and the indoor section 102 by the damper 200. Thus, the duct body 100 needs to extend out of the room through the indoor wall to communicate the outdoor with the indoor, the damping portion 200 is disposed inside the duct body 100 corresponding to the position where the duct body 100 penetrates through the wall, the duct body 100 is divided into the outdoor section 101 and the indoor section 102 by the damping portion 200, because the damping portion 200 is disposed at the position where the distance from the air inlet 110 is one half of the distance from the air outlet 120, the length of the indoor section 102 of the duct body 100 is about twice the length of the outdoor section 101, when the cold airflow flowing backward into the outdoor section 101 enters the indoor section 102 through the damping portion 200, the flow speed is reduced, the airflow flows in the relatively long indoor section 102, the heat exchange temperature between the duct body 100 and the indoor environment rises, and the risk of frost formation at the air outlet 120 is further reduced.

Optionally, the fresh air duct structure further includes: a fan 300. The blower 300 is disposed in the duct body 100, and is used for providing a negative pressure required for introducing fresh air. Like this, when outdoor new trend is introduced to needs, utilize fan 300's rotation to provide the negative pressure of introducing the new trend, reduce the loss of new trend amount of wind, improve the new trend and experience.

Optionally, the fan 300 is disposed on the air outlet side of the damping portion 200. Like this, set up fan 300 in the air-out side of damping portion 200, the negative pressure that produces when making fan 300 rotate can direct action in damping passageway 210 in the damping portion 200, when the new trend is introduced to needs, further reduce the loss of new trend amount of wind, and because fan 300 can produce the heat at the during operation, set up fan 300 in the air-out side that the velocity of flow slows down, make the new trend air current of introduction can with fan 300 heat transfer, dispel the heat to fan 300 when improving the temperature of new trend air current, recycle fan 300's heat.

Specifically, the fan 300 is disposed in the indoor section 102 of the duct body 100.

Specifically, the fan 300 is an axial flow fan, an air inlet end of the fan 300 faces an air outlet end of the damping channel 210, and an air outlet end of the fan 300 faces the air outlet 120. Like this, the air current flow direction does not change when flowing through axial fan, and the loss of wind pressure is less, utilizes axial fan's air inlet end to set up towards damping channel 210's air-out end moreover, makes the better effect that acts on damping channel 210 of negative pressure that fan 300 produced, when outdoor new trend is introduced to needs, better pass through damping channel 210 and inhale outdoor new trend.

Referring to fig. 8, in some embodiments, an air conditioner includes: fresh air inlet 400 and the fresh air duct structure of the above embodiments. The fresh air inlet 400 is located indoors; the fresh air duct structure of the above embodiment is communicated with the fresh air inlet 400.

The air conditioner that this disclosed embodiment provided, in being applied to the air conditioner with the fresh air pipeline structure of above-mentioned embodiment, with fresh air pipeline structure and new trend import 400 intercommunication, when needing the new trend mode, in outdoor new trend gets into the air conditioner through fresh air pipeline structure introduction, improved the air supply effect of air conditioner, when need not to introduce the new trend, utilize the damping part 200 among this fresh air pipeline structure can avoid a large amount of outdoor airflows to flow backward the new trend import 400 that gets into the air conditioner and cause the frosting.

Optionally, the fresh air inlet 400 is communicated with the air outlet 120 of the duct body 100 in the fresh air duct structure. Like this, in outdoor new trend air current flowed into the pipeline body 100, then in the air outlet 120 through the pipeline body 100 got into new trend import 400, improved the air supply of air conditioner and experienced, when need not to introduce the new trend, utilized the damping part 200 that sets up in the pipeline body 100 can avoid a large amount of outdoor air currents to flow backward and get into the new trend import 400 of air conditioner and cause the frosting.

The above description and the drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A fresh air duct structure, comprising:

the air conditioner comprises a pipeline body (100), wherein one end of the pipeline body is provided with an air inlet (110), the other end of the pipeline body is provided with an air outlet (120), the air inlet (110) is communicated with the outside, and the air outlet (120) is communicated with the inside of a room;

damping portion (200), set up in the pipeline body (100), have in damping portion (200) along damping passageway (210) that set up on the pipeline body (100) circulation direction, damping passageway (210) run through damping portion (200) set up, just damping passageway (210) orientation the flow area of the one end of air intake (110) is less than damping passageway (210) orientation the flow area of the one end of air outlet (120).

2. The fresh air duct structure according to claim 1,

the damping part (200) seals the flow surface of the pipeline body (100).

3. The fresh air duct structure according to claim 1,

one end of the damping channel (210) facing the air inlet (110) is a first end (211), and one end of the damping channel (210) facing the air outlet (120) is a second end (212); the flow area of the first end (211) is greater than or equal to one half of the flow area of the second end (212) and less than the flow area of the second end (212).

4. The fresh air duct structure according to claim 3,

the flow area of the first end (211) is equal to one half of the flow area of the second end (212).

5. The fresh air duct structure according to any one of claims 1 to 4,

the damping channels (210) are arranged in a plurality, and the damping channels (210) are uniformly distributed in the damping part (200).

6. The fresh air duct structure according to claim 5,

the sum of the flow areas of the ends of the plurality of damping channels (210) facing the air inlet (110) is greater than or equal to one fourth of the flow area of the pipeline body (100) and less than one half of the flow area of the pipeline body (100); the sum of the flow areas of the ends, facing the air outlet (120), of the damping channels (210) is greater than or equal to one half of the flow area of the pipeline body (100) and smaller than the flow area of the pipeline body (100).

7. The fresh air duct structure according to any one of claims 1 to 4,

the distance between the damping part (200) and the air inlet (110) is half of the distance between the damping part (200) and the air outlet (120).

8. The fresh air duct structure according to any one of claims 1 to 4, further comprising:

and the fan (300) is arranged in the pipeline body (100) and is used for providing negative pressure required by introducing fresh air.

9. The fresh air duct structure according to claim 8,

the fan (300) is arranged on the air outlet side of the damping part (200).

10. An air conditioner, comprising:

a fresh air inlet (400) located indoors;

the fresh air duct structure according to any one of claims 1 to 9, communicating with the fresh air inlet (400).

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